Critical dynamics and phase transition of a strongly interacting warm spin gas.
alkali vapor
critical dynamics
phase transition
spin exchange collisions
Journal
Proceedings of the National Academy of Sciences of the United States of America
ISSN: 1091-6490
Titre abrégé: Proc Natl Acad Sci U S A
Pays: United States
ID NLM: 7505876
Informations de publication
Date de publication:
26 10 2021
26 10 2021
Historique:
accepted:
17
09
2021
entrez:
23
10
2021
pubmed:
24
10
2021
medline:
24
10
2021
Statut:
ppublish
Résumé
Phase transitions are emergent phenomena where microscopic interactions drive a disordered system into a collectively ordered phase. Near the boundary between two phases, the system can exhibit critical, scale-invariant behavior. Here, we report on a second-order phase transition accompanied by critical behavior in a system of warm cesium spins driven by linearly polarized light. The ordered phase exhibits macroscopic magnetization when the interactions between the spins become dominant. We measure the phase diagram of the system and observe the collective behavior near the phase boundaries, including power-law dependence of the magnetization and divergence of the susceptibility. Out of equilibrium, we observe a critical slowdown of the spin response time by two orders of magnitude, exceeding 5 s near the phase boundary. This work establishes a controlled platform for investigating equilibrium and nonequilibrium properties of magnetic phases.
Identifiants
pubmed: 34686598
pii: 2106400118
doi: 10.1073/pnas.2106400118
pmc: PMC8639383
pii:
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Déclaration de conflit d'intérêts
The authors declare no competing interest.
Références
Proc Natl Acad Sci U S A. 2017 May 16;114(20):5083-5088
pubmed: 28461467
Phys Rev Lett. 1996 Mar 25;76(13):2266-2269
pubmed: 10060654
Nat Commun. 2020 May 15;11(1):2415
pubmed: 32415093
Phys Rev Lett. 2015 Sep 11;115(11):113003
pubmed: 26406827
Science. 2009 Sep 18;325(5947):1521-4
pubmed: 19762638
Phys Rev Lett. 2003 Sep 19;91(12):123003
pubmed: 14525358
Phys Rev Lett. 2020 Feb 14;124(6):060602
pubmed: 32109080
Nat Commun. 2018 May 30;9(1):2074
pubmed: 29849088
Sci Rep. 2016 Sep 23;6:34089
pubmed: 27659312
Nature. 2017 Nov 29;551(7682):579-584
pubmed: 29189778
Science. 2017 Sep 8;357(6355):995-1001
pubmed: 28883070
Science. 2018 Oct 26;362(6413):446-449
pubmed: 30361371
Phys Rev Lett. 2020 Jan 31;124(4):043602
pubmed: 32058754
Science. 2013 Oct 25;342(6157):453-7
pubmed: 24159040
Nature. 2017 May 24;545(7655):462-466
pubmed: 28541324
Nature. 2011 Apr 21;472(7343):307-12
pubmed: 21490600
Nature. 2003 Apr 10;422(6932):596-9
pubmed: 12686995
Phys Rev E. 2020 May;101(5-1):052106
pubmed: 32575203
Phys Rev Lett. 2010 Dec 10;105(24):243001
pubmed: 21231521
Science. 2016 Nov 4;354(6312):603-606
pubmed: 27811271
Proc Natl Acad Sci U S A. 2019 Jul 30;116(31):15350-15355
pubmed: 31311870
Phys Rev Lett. 2013 Jun 28;110(26):263004
pubmed: 23848871
Science. 2016 Nov 4;354(6312):614-617
pubmed: 27811274
Phys Rev Lett. 1987 Sep 21;59(12):1281-1284
pubmed: 10035192
Nat Phys. 2020 Jan;16(1):38-41
pubmed: 31915458